A LONG-TERM TREND IN THE HEIGHT OF THE ATMOSPHERIC SODIUM LAYER - POSSIBLE EVIDENCE FOR GLOBAL CHANGE

被引：66
|
作者：
CLEMESHA, BR
SIMONICH, DM
BATISTA, PP
机构：
[1] Instituto Nacional de Pesquisas Espaciais Sct São José Dos Campos, São Paulo
来源：
GEOPHYSICAL RESEARCH LETTERS | 1992年 / 19卷 / 05期
关键词：
D O I：
10.1029/92GL00123
中图分类号：
P [天文学、地球科学];
学科分类号：
07 ;
摘要：
An analysis of a long series of lidar measurements of the vertical distribution of atmospheric sodium shows the existence of a long-term trend in the centroid height of the layer. After making allowance for the sampling effects of the mean seasonal and diurnal variations in centroid height, it is found that the height of the layer fell by approximately 700 meters between 1972 and 1987. A regression analysis indicates a mean rate of fall of 49 +/-12 m yr-1, with a correlation coefficient of -0.33, significant at the 99.99% level. The observed change is consistent with long term trends in mesospheric temperatures detected by other techniques.
引用
收藏
页码：457 / 460
页数：4
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